package cn.tedu._05mvcboot03.base.interceptor;

import cn.tedu._05mvcboot03.pojo.vo.UserVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

@Slf4j
@Configuration
public class LoginCheckInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
       log.debug("拦截器检验登陆状态。。。。。");
        HttpSession session = request.getSession();
        UserVO userVO = (UserVO) session.getAttribute("user");
        if(userVO!=null){
            return true;
        }
        response.sendRedirect("login.html");
        return false;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        HandlerInterceptor.super.postHandle(request, response, handler, modelAndView);
    }
}
